145561234 has 32 divisors (see below), whose sum is σ = 275296896. Its totient is φ = 56177280.

The previous prime is 145561231. The next prime is 145561279. The reversal of 145561234 is 432165541.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 145561196 and 145561205.

It is not an unprimeable number, because it can be changed into a prime (145561231) 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, 2292 + ... + 17215.

It is an arithmetic number, because the mean of its divisors is an integer number (8603028).

Almost surely, 2^145561234 is an apocalyptic number.

145561234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

145561234 is a deficient number, since it is larger than the sum of its proper divisors (129735662).

145561234 is a wasteful number, since it uses less digits than its factorization.

145561234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19570.

The product of its digits is 14400, while the sum is 31.

The square root of 145561234 is about 12064.8760457785. The cubic root of 145561234 is about 526.0357288978.

The spelling of 145561234 in words is "one hundred forty-five million, five hundred sixty-one thousand, two hundred thirty-four".