70238157 has 16 divisors (see below), whose sum is σ = 105461760. Its totient is φ = 41194800.

The previous prime is 70238137. The next prime is 70238171. The reversal of 70238157 is 75183207.

It is not a de Polignac number, because 70238157 - 2¹² = 70234061 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70238107) 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, 33307 + ... + 35352.

It is an arithmetic number, because the mean of its divisors is an integer number (6591360).

Almost surely, 2^70238157 is an apocalyptic number.

It is an amenable number.

70238157 is a deficient number, since it is larger than the sum of its proper divisors (35223603).

70238157 is a wasteful number, since it uses less digits than its factorization.

70238157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68704.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 70238157 is about 8380.8207831930. The cubic root of 70238157 is about 412.5953880414.

The spelling of 70238157 in words is "seventy million, two hundred thirty-eight thousand, one hundred fifty-seven".