145157442 has 16 divisors (see below), whose sum is σ = 290539200. Its totient is φ = 48348432.

The previous prime is 145157437. The next prime is 145157447. The reversal of 145157442 is 244751541.

It is an interprime number because it is at equal distance from previous prime (145157437) and next prime (145157447).

It is not an unprimeable number, because it can be changed into a prime (145157447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253 + ... + 17040.

It is an arithmetic number, because the mean of its divisors is an integer number (18158700).

Almost surely, 2^145157442 is an apocalyptic number.

145157442 is an abundant number, since it is smaller than the sum of its proper divisors (145381758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145157442 is a wasteful number, since it uses less digits than its factorization.

145157442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18697.

The product of its digits is 22400, while the sum is 33.

The square root of 145157442 is about 12048.1302283798. The cubic root of 145157442 is about 525.5488645349.

The spelling of 145157442 in words is "one hundred forty-five million, one hundred fifty-seven thousand, four hundred forty-two".