145101270 has 32 divisors (see below), whose sum is σ = 349780320. Its totient is φ = 38522880.

The previous prime is 145101269. The next prime is 145101277. The reversal of 145101270 is 72101541.

It is a happy number.

It is a super-2 number, since 2×145101270² = 42108757111225800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145101277) 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, 3691 + ... + 17430.

It is an arithmetic number, because the mean of its divisors is an integer number (10930635).

Almost surely, 2^145101270 is an apocalyptic number.

145101270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145101270 is an abundant number, since it is smaller than the sum of its proper divisors (204679050).

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

145101270 is a wasteful number, since it uses less digits than its factorization.

145101270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21360.

The product of its (nonzero) digits is 280, while the sum is 21.

The square root of 145101270 is about 12045.7988527121. The cubic root of 145101270 is about 525.4810647281.

The spelling of 145101270 in words is "one hundred forty-five million, one hundred one thousand, two hundred seventy".