151123640 has 32 divisors (see below), whose sum is σ = 351756000. Its totient is φ = 58364544.

The previous prime is 151123633. The next prime is 151123703. The reversal of 151123640 is 46321151.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63980 + ... + 66299.

It is an arithmetic number, because the mean of its divisors is an integer number (10992375).

Almost surely, 2^151123640 is an apocalyptic number.

151123640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151123640 is an abundant number, since it is smaller than the sum of its proper divisors (200632360).

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

151123640 is a wasteful number, since it uses less digits than its factorization.

151123640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130319 (or 130315 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 151123640 is about 12293.2355382950. The cubic root of 151123640 is about 532.6527029418.

Adding to 151123640 its reverse (46321151), we get a palindrome (197444791).

The spelling of 151123640 in words is "one hundred fifty-one million, one hundred twenty-three thousand, six hundred forty".