145013770 has 32 divisors (see below), whose sum is σ = 288671040. Its totient is φ = 52007040.

The previous prime is 145013747. The next prime is 145013773. The reversal of 145013770 is 77310541.

It is a super-2 number, since 2×145013770² = 42057986979225800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145013773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1000 + ... + 17059.

It is an arithmetic number, because the mean of its divisors is an integer number (9020970).

Almost surely, 2^145013770 is an apocalyptic number.

145013770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145013770 is a deficient number, since it is larger than the sum of its proper divisors (143657270).

145013770 is a wasteful number, since it uses less digits than its factorization.

145013770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18150.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 145013770 is about 12042.1663333472. The cubic root of 145013770 is about 525.3754170459.

The spelling of 145013770 in words is "one hundred forty-five million, thirteen thousand, seven hundred seventy".