374151521 has 8 divisors (see below), whose sum is σ = 399054600. Its totient is φ = 349570048.

The previous prime is 374151473. The next prime is 374151523. The reversal of 374151521 is 125151473.

It can be written as a sum of positive squares in 4 ways, for example, as 194993296 + 179158225 = 13964^2 + 13385^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-374151521 is a prime.

It is a super-2 number, since 2×374151521² = 279978721333226882, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (374151523) by changing a digit.

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, 77996 + ... + 82653.

It is an arithmetic number, because the mean of its divisors is an integer number (49881825).

Almost surely, 2^374151521 is an apocalyptic number.

It is an amenable number.

374151521 is a deficient number, since it is larger than the sum of its proper divisors (24903079).

374151521 is a wasteful number, since it uses less digits than its factorization.

374151521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160803.

The product of its digits is 4200, while the sum is 29.

The square root of 374151521 is about 19342.9966913092. The cubic root of 374151521 is about 720.5804995680.

The spelling of 374151521 in words is "three hundred seventy-four million, one hundred fifty-one thousand, five hundred twenty-one".