70137998 has 8 divisors (see below), whose sum is σ = 120236592. Its totient is φ = 30059136.

The previous prime is 70137973. The next prime is 70138001. The reversal of 70137998 is 89973107.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2504915 + ... + 2504942.

It is an arithmetic number, because the mean of its divisors is an integer number (15029574).

Almost surely, 2^70137998 is an apocalyptic number.

70137998 is a deficient number, since it is larger than the sum of its proper divisors (50098594).

70137998 is a wasteful number, since it uses less digits than its factorization.

70137998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5009866.

The product of its (nonzero) digits is 95256, while the sum is 44.

The square root of 70137998 is about 8374.8431627106. The cubic root of 70137998 is about 412.3991756031.

The spelling of 70137998 in words is "seventy million, one hundred thirty-seven thousand, nine hundred ninety-eight".