145377834 has 32 divisors (see below), whose sum is σ = 338567040. Its totient is φ = 40752192.

The previous prime is 145377803. The next prime is 145377839. The reversal of 145377834 is 438773541.

145377834 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×145377834² = 42269429237063112, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (145377839) 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, 30429 + ... + 34880.

It is an arithmetic number, because the mean of its divisors is an integer number (10580220).

Almost surely, 2^145377834 is an apocalyptic number.

145377834 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

145377834 is an abundant number, since it is smaller than the sum of its proper divisors (193189206).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145377834 is a wasteful number, since it uses less digits than its factorization.

145377834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65374.

The product of its digits is 282240, while the sum is 42.

The square root of 145377834 is about 12057.2730747877. The cubic root of 145377834 is about 525.8147096600.

The spelling of 145377834 in words is "one hundred forty-five million, three hundred seventy-seven thousand, eight hundred thirty-four".