145637157 has 4 divisors (see below), whose sum is σ = 194182880. Its totient is φ = 97091436.

The previous prime is 145637137. The next prime is 145637183. The reversal of 145637157 is 751736541.

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.

It is not a de Polignac number, because 145637157 - 2²² = 141442853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145637137) 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, 24272857 + ... + 24272862.

It is an arithmetic number, because the mean of its divisors is an integer number (48545720).

Almost surely, 2^145637157 is an apocalyptic number.

It is an amenable number.

145637157 is a deficient number, since it is larger than the sum of its proper divisors (48545723).

145637157 is an equidigital number, since it uses as much as digits as its factorization.

145637157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48545722.

The product of its digits is 88200, while the sum is 39.

The square root of 145637157 is about 12068.0220831750. The cubic root of 145637157 is about 526.1271709844.

The spelling of 145637157 in words is "one hundred forty-five million, six hundred thirty-seven thousand, one hundred fifty-seven".