157225877009 has 4 divisors (see below), whose sum is σ = 157226998500. Its totient is φ = 157224755520.

The previous prime is 157225876991. The next prime is 157225877071. The reversal of 157225877009 is 900778522751.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 900778522751 = 59 ⋅15267432589.

It can be written as a sum of positive squares in 2 ways, for example, as 62952315409 + 94273561600 = 250903^2 + 307040^2 .

It is a cyclic number.

It is not a de Polignac number, because 157225877009 - 2¹⁶ = 157225811473 is a prime.

It is a super-3 number, since 3×157225877009³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157225877089) 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, 314372 + ... + 642869.

It is an arithmetic number, because the mean of its divisors is an integer number (39306749625).

Almost surely, 2^157225877009 is an apocalyptic number.

It is an amenable number.

157225877009 is a deficient number, since it is larger than the sum of its proper divisors (1121491).

157225877009 is an equidigital number, since it uses as much as digits as its factorization.

157225877009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121490.

The product of its (nonzero) digits is 2469600, while the sum is 53.

The spelling of 157225877009 in words is "one hundred fifty-seven billion, two hundred twenty-five million, eight hundred seventy-seven thousand, nine".