672151257 has 16 divisors (see below), whose sum is σ = 1000946880. Its totient is φ = 445775616.

The previous prime is 672151237. The next prime is 672151301. The reversal of 672151257 is 752151276.

It is not a de Polignac number, because 672151257 - 2¹⁴ = 672134873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (672151237) 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, 59283 + ... + 69704.

It is an arithmetic number, because the mean of its divisors is an integer number (62559180).

Almost surely, 2^672151257 is an apocalyptic number.

It is an amenable number.

672151257 is a deficient number, since it is larger than the sum of its proper divisors (328795623).

672151257 is a wasteful number, since it uses less digits than its factorization.

672151257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129189 (or 129183 counting only the distinct ones).

The product of its digits is 29400, while the sum is 36.

The square root of 672151257 is about 25925.8800622081. The cubic root of 672151257 is about 875.9695405998.

The spelling of 672151257 in words is "six hundred seventy-two million, one hundred fifty-one thousand, two hundred fifty-seven".