70137742 has 4 divisors (see below), whose sum is σ = 105206616. Its totient is φ = 35068870.

The previous prime is 70137719. The next prime is 70137791. The reversal of 70137742 is 24773107.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24773107 = 71 ⋅348917.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17534434 + ... + 17534437.

It is an arithmetic number, because the mean of its divisors is an integer number (26301654).

Almost surely, 2^70137742 is an apocalyptic number.

70137742 is a deficient number, since it is larger than the sum of its proper divisors (35068874).

70137742 is a wasteful number, since it uses less digits than its factorization.

70137742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35068873.

The product of its (nonzero) digits is 8232, while the sum is 31.

The square root of 70137742 is about 8374.8278788283. The cubic root of 70137742 is about 412.3986738574.

The spelling of 70137742 in words is "seventy million, one hundred thirty-seven thousand, seven hundred forty-two".