73157641 has 4 divisors (see below), whose sum is σ = 76338432. Its totient is φ = 69976852.

The previous prime is 73157629. The next prime is 73157671. The reversal of 73157641 is 14675137.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14675137 = 263 ⋅55799.

It is a cyclic number.

It is not a de Polignac number, because 73157641 - 2⁹ = 73157129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73157597 and 73157606.

It is not an unprimeable number, because it can be changed into a prime (73157671) 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, 1590361 + ... + 1590406.

It is an arithmetic number, because the mean of its divisors is an integer number (19084608).

Almost surely, 2^73157641 is an apocalyptic number.

It is an amenable number.

73157641 is a deficient number, since it is larger than the sum of its proper divisors (3180791).

73157641 is a wasteful number, since it uses less digits than its factorization.

73157641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3180790.

The product of its digits is 17640, while the sum is 34.

The square root of 73157641 is about 8553.2240120320. The cubic root of 73157641 is about 418.2345413433.

The spelling of 73157641 in words is "seventy-three million, one hundred fifty-seven thousand, six hundred forty-one".