145957994 has 32 divisors (see below), whose sum is σ = 273899136. Its totient is φ = 56790720.

The previous prime is 145957993. The next prime is 145958003. The reversal of 145957994 is 499759541.

It is not an unprimeable number, because it can be changed into a prime (145957993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4529 + ... + 17675.

It is an arithmetic number, because the mean of its divisors is an integer number (8559348).

Almost surely, 2^145957994 is an apocalyptic number.

145957994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

145957994 is a deficient number, since it is larger than the sum of its proper divisors (127941142).

145957994 is a wasteful number, since it uses less digits than its factorization.

145957994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13230.

The product of its digits is 2041200, while the sum is 53.

The square root of 145957994 is about 12081.3076279019. The cubic root of 145957994 is about 526.5132383464.

The spelling of 145957994 in words is "one hundred forty-five million, nine hundred fifty-seven thousand, nine hundred ninety-four".