145993510 has 32 divisors (see below), whose sum is σ = 285626880. Its totient is φ = 53405568.

The previous prime is 145993493. The next prime is 145993513. The reversal of 145993510 is 15399541.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 145993510.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145993513) 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, 9019 + ... + 19321.

It is an arithmetic number, because the mean of its divisors is an integer number (8925840).

Almost surely, 2^145993510 is an apocalyptic number.

145993510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145993510 is a deficient number, since it is larger than the sum of its proper divisors (139633370).

145993510 is a wasteful number, since it uses less digits than its factorization.

145993510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10432.

The product of its (nonzero) digits is 24300, while the sum is 37.

The square root of 145993510 is about 12082.7774124992. Note that the first 3 decimals coincide. The cubic root of 145993510 is about 526.5559404214. Note that the first 3 decimals are identical.

The spelling of 145993510 in words is "one hundred forty-five million, nine hundred ninety-three thousand, five hundred ten".