157201140542 has 4 divisors (see below), whose sum is σ = 235801710816. Its totient is φ = 78600570270.

The previous prime is 157201140539. The next prime is 157201140557. The reversal of 157201140542 is 245041102751.

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

It is a junction number, because it is equal to n+sod(n) for n = 157201140499 and 157201140508.

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, 39300285134 + ... + 39300285137.

It is an arithmetic number, because the mean of its divisors is an integer number (58950427704).

Almost surely, 2^157201140542 is an apocalyptic number.

157201140542 is a deficient number, since it is larger than the sum of its proper divisors (78600570274).

157201140542 is an equidigital number, since it uses as much as digits as its factorization.

157201140542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78600570273.

The product of its (nonzero) digits is 11200, while the sum is 32.

The spelling of 157201140542 in words is "one hundred fifty-seven billion, two hundred one million, one hundred forty thousand, five hundred forty-two".