145377278 has 8 divisors (see below), whose sum is σ = 218121768. Its totient is φ = 72670024.

The previous prime is 145377229. The next prime is 145377283. The reversal of 145377278 is 872773541.

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

It is a super-2 number, since 2×145377278² = 42269105917378568, which contains 22 as substring.

It is a congruent number.

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, 4625 + ... + 17667.

It is an arithmetic number, because the mean of its divisors is an integer number (27265221).

Almost surely, 2^145377278 is an apocalyptic number.

145377278 is a deficient number, since it is larger than the sum of its proper divisors (72744490).

145377278 is a wasteful number, since it uses less digits than its factorization.

145377278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18618.

The product of its digits is 329280, while the sum is 44.

The square root of 145377278 is about 12057.2500181426. The cubic root of 145377278 is about 525.8140393300.

The spelling of 145377278 in words is "one hundred forty-five million, three hundred seventy-seven thousand, two hundred seventy-eight".