70149351 has 4 divisors (see below), whose sum is σ = 93532472. Its totient is φ = 46766232.

The previous prime is 70149301. The next prime is 70149353. The reversal of 70149351 is 15394107.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 70149351 - 2¹⁰ = 70148327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70149353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11691556 + ... + 11691561.

It is an arithmetic number, because the mean of its divisors is an integer number (23383118).

Almost surely, 2^70149351 is an apocalyptic number.

70149351 is a deficient number, since it is larger than the sum of its proper divisors (23383121).

70149351 is a wasteful number, since it uses less digits than its factorization.

70149351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23383120.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 70149351 is about 8375.5209390222. The cubic root of 70149351 is about 412.4214256215.

It can be divided in two parts, 70149 and 351, that added together give a triangular number (70500 = T₃₇₅).

The spelling of 70149351 in words is "seventy million, one hundred forty-nine thousand, three hundred fifty-one".