145131142 has 32 divisors (see below), whose sum is σ = 250768224. Its totient is φ = 62400000.

The previous prime is 145131121. The next prime is 145131163. The reversal of 145131142 is 241131541.

It is an interprime number because it is at equal distance from previous prime (145131121) and next prime (145131163).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43017 + ... + 46267.

It is an arithmetic number, because the mean of its divisors is an integer number (7836507).

Almost surely, 2^145131142 is an apocalyptic number.

145131142 is a deficient number, since it is larger than the sum of its proper divisors (105637082).

145131142 is a wasteful number, since it uses less digits than its factorization.

145131142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3384.

The product of its digits is 480, while the sum is 22.

The square root of 145131142 is about 12047.0387232714. The cubic root of 145131142 is about 525.5171225179.

Adding to 145131142 its reverse (241131541), we get a palindrome (386262683).

The spelling of 145131142 in words is "one hundred forty-five million, one hundred thirty-one thousand, one hundred forty-two".