145378370 has 8 divisors (see below), whose sum is σ = 261681084. Its totient is φ = 58151344.

The previous prime is 145378369. The next prime is 145378397. The reversal of 145378370 is 73873541.

It can be written as a sum of positive squares in 2 ways, for example, as 128346241 + 17032129 = 11329^2 + 4127^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×145378370² = 42269740927713800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7268909 + ... + 7268928.

Almost surely, 2^145378370 is an apocalyptic number.

145378370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145378370 is a deficient number, since it is larger than the sum of its proper divisors (116302714).

145378370 is a wasteful number, since it uses less digits than its factorization.

145378370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14537844.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 145378370 is about 12057.2953020153. The cubic root of 145378370 is about 525.8153558757.

The spelling of 145378370 in words is "one hundred forty-five million, three hundred seventy-eight thousand, three hundred seventy".