145996157 has 4 divisors (see below), whose sum is σ = 152343840. Its totient is φ = 139648476.

The previous prime is 145996141. The next prime is 145996163. The reversal of 145996157 is 751699541.

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 a cyclic number.

It is not a de Polignac number, because 145996157 - 2⁴ = 145996141 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 (145996127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3173807 + ... + 3173852.

It is an arithmetic number, because the mean of its divisors is an integer number (38085960).

Almost surely, 2^145996157 is an apocalyptic number.

It is an amenable number.

145996157 is a deficient number, since it is larger than the sum of its proper divisors (6347683).

145996157 is an equidigital number, since it uses as much as digits as its factorization.

145996157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6347682.

The product of its digits is 340200, while the sum is 47.

The square root of 145996157 is about 12082.8869480766. The cubic root of 145996157 is about 526.5591227208.

The spelling of 145996157 in words is "one hundred forty-five million, nine hundred ninety-six thousand, one hundred fifty-seven".