145949390 has 8 divisors (see below), whose sum is σ = 262708920. Its totient is φ = 58379752.

The previous prime is 145949371. The next prime is 145949417. The reversal of 145949390 is 93949541.

It is a happy number.

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

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, 7297460 + ... + 7297479.

It is an arithmetic number, because the mean of its divisors is an integer number (32838615).

Almost surely, 2^145949390 is an apocalyptic number.

145949390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145949390 is a deficient number, since it is larger than the sum of its proper divisors (116759530).

145949390 is a wasteful number, since it uses less digits than its factorization.

145949390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14594946.

The product of its (nonzero) digits is 174960, while the sum is 44.

The square root of 145949390 is about 12080.9515353717. The cubic root of 145949390 is about 526.5028924270.

The spelling of 145949390 in words is "one hundred forty-five million, nine hundred forty-nine thousand, three hundred ninety".