70251497 has 8 divisors (see below), whose sum is σ = 74462976. Its totient is φ = 66048832.

The previous prime is 70251457. The next prime is 70251509. The reversal of 70251497 is 79415207.

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

It is a cyclic number.

It is not a de Polignac number, because 70251497 - 2¹⁶ = 70185961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70251437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21728 + ... + 24750.

It is an arithmetic number, because the mean of its divisors is an integer number (9307872).

Almost surely, 2^70251497 is an apocalyptic number.

It is an amenable number.

70251497 is a deficient number, since it is larger than the sum of its proper divisors (4211479).

70251497 is a wasteful number, since it uses less digits than its factorization.

70251497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4407.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 70251497 is about 8381.6166101773. The cubic root of 70251497 is about 412.6215071496.

The spelling of 70251497 in words is "seventy million, two hundred fifty-one thousand, four hundred ninety-seven".