10157520242 has 4 divisors (see below), whose sum is σ = 15236280366. Its totient is φ = 5078760120.

The previous prime is 10157520223. The next prime is 10157520253. The reversal of 10157520242 is 24202575101.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 10154794441 + 2725801 = 100771^2 + 1651^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2539380059 + ... + 2539380062.

Almost surely, 2^10157520242 is an apocalyptic number.

10157520242 is a deficient number, since it is larger than the sum of its proper divisors (5078760124).

10157520242 is an equidigital number, since it uses as much as digits as its factorization.

10157520242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5078760123.

The product of its (nonzero) digits is 5600, while the sum is 29.

It can be divided in two parts, 1015 and 7520242, that added together give a palindrome (7521257).

The spelling of 10157520242 in words is "ten billion, one hundred fifty-seven million, five hundred twenty thousand, two hundred forty-two".