151601650 has 12 divisors (see below), whose sum is σ = 281979162. Its totient is φ = 60640640.

The previous prime is 151601629. The next prime is 151601657. The reversal of 151601650 is 56106151.

It can be written as a sum of positive squares in 3 ways, for example, as 79334649 + 72267001 = 8907^2 + 8501^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (151601657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1515967 + ... + 1516066.

Almost surely, 2^151601650 is an apocalyptic number.

151601650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

151601650 is a deficient number, since it is larger than the sum of its proper divisors (130377512).

151601650 is a wasteful number, since it uses less digits than its factorization.

151601650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3032045 (or 3032040 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 151601650 is about 12312.6621816730. The cubic root of 151601650 is about 533.2137123216.

It can be divided in two parts, 151601 and 650, that added together give a palindrome (152251).

The spelling of 151601650 in words is "one hundred fifty-one million, six hundred one thousand, six hundred fifty".