151739381 has 2 divisors, whose sum is σ = 151739382. Its totient is φ = 151739380.

The previous prime is 151739353. The next prime is 151739383. The reversal of 151739381 is 183937151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111302500 + 40436881 = 10550^2 + 6359^2 .

It is a cyclic number.

It is not a de Polignac number, because 151739381 - 2¹⁴ = 151722997 is a prime.

It is a super-2 number, since 2×151739381² = 46049679492526322, which contains 22 as substring.

Together with 151739383, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151739383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75869690 + 75869691.

It is an arithmetic number, because the mean of its divisors is an integer number (75869691).

Almost surely, 2^151739381 is an apocalyptic number.

It is an amenable number.

151739381 is a deficient number, since it is larger than the sum of its proper divisors (1).

151739381 is an equidigital number, since it uses as much as digits as its factorization.

151739381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 38.

The square root of 151739381 is about 12318.2539753002. The cubic root of 151739381 is about 533.3751393878.

The spelling of 151739381 in words is "one hundred fifty-one million, seven hundred thirty-nine thousand, three hundred eighty-one".