151491613 has 16 divisors (see below), whose sum is σ = 186802560. Its totient is φ = 119635776.

The previous prime is 151491589. The next prime is 151491619. The reversal of 151491613 is 316194151.

It is not a de Polignac number, because 151491613 - 2¹³ = 151483421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151491619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60378 + ... + 62836.

It is an arithmetic number, because the mean of its divisors is an integer number (11675160).

Almost surely, 2^151491613 is an apocalyptic number.

151491613 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

151491613 is a deficient number, since it is larger than the sum of its proper divisors (35310947).

151491613 is a wasteful number, since it uses less digits than its factorization.

151491613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3156.

The product of its digits is 3240, while the sum is 31.

The square root of 151491613 is about 12308.1929217899. The cubic root of 151491613 is about 533.0846736236.

The spelling of 151491613 in words is "one hundred fifty-one million, four hundred ninety-one thousand, six hundred thirteen".