145407190 has 48 divisors (see below), whose sum is σ = 282439872. Its totient is φ = 53866368.

The previous prime is 145407187. The next prime is 145407191. The reversal of 145407190 is 91704541.

It is a super-2 number, since 2×145407190² = 42286501807392200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145407191) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 169242 + ... + 170098.

It is an arithmetic number, because the mean of its divisors is an integer number (5884164).

Almost surely, 2^145407190 is an apocalyptic number.

145407190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145407190 is a deficient number, since it is larger than the sum of its proper divisors (137032682).

145407190 is a wasteful number, since it uses less digits than its factorization.

145407190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949 (or 930 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 145407190 is about 12058.4903698597. The cubic root of 145407190 is about 525.8500996901.

The spelling of 145407190 in words is "one hundred forty-five million, four hundred seven thousand, one hundred ninety".