150642740 has 12 divisors (see below), whose sum is σ = 316349796. Its totient is φ = 60257088.

The previous prime is 150642731. The next prime is 150642749. The reversal of 150642740 is 47246051.

It is an interprime number because it is at equal distance from previous prime (150642731) and next prime (150642749).

It can be written as a sum of positive squares in 2 ways, for example, as 118243876 + 32398864 = 10874^2 + 5692^2 .

It is a super-2 number, since 2×150642740² = 45386470229415200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150642749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3766049 + ... + 3766088.

It is an arithmetic number, because the mean of its divisors is an integer number (26362483).

Almost surely, 2^150642740 is an apocalyptic number.

150642740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

150642740 is an abundant number, since it is smaller than the sum of its proper divisors (165707056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

150642740 is a wasteful number, since it uses less digits than its factorization.

150642740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7532146 (or 7532144 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 150642740 is about 12273.6604157032. The cubic root of 150642740 is about 532.0871067348.

Adding to 150642740 its reverse (47246051), we get a palindrome (197888791).

The spelling of 150642740 in words is "one hundred fifty million, six hundred forty-two thousand, seven hundred forty".