145297100 has 36 divisors (see below), whose sum is σ = 339551184. Its totient is φ = 53647680.

The previous prime is 145297099. The next prime is 145297111. The reversal of 145297100 is 1792541.

It is a super-2 number, since 2×145297100² = 42222494536820000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54584 + ... + 57183.

Almost surely, 2^145297100 is an apocalyptic number.

145297100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145297100 is an abundant number, since it is smaller than the sum of its proper divisors (194254084).

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

145297100 is a wasteful number, since it uses less digits than its factorization.

145297100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111794 (or 111787 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 145297100 is about 12053.9246720726. The cubic root of 145297100 is about 525.7173564751.

The spelling of 145297100 in words is "one hundred forty-five million, two hundred ninety-seven thousand, one hundred".