145561634 has 8 divisors (see below), whose sum is σ = 219913680. Its totient is φ = 72257076.

The previous prime is 145561627. The next prime is 145561649. The reversal of 145561634 is 436165541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 145561594 and 145561603.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261524 + ... + 262079.

It is an arithmetic number, because the mean of its divisors is an integer number (27489210).

Almost surely, 2^145561634 is an apocalyptic number.

145561634 is a deficient number, since it is larger than the sum of its proper divisors (74352046).

145561634 is a wasteful number, since it uses less digits than its factorization.

145561634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523744.

The product of its digits is 43200, while the sum is 35.

The square root of 145561634 is about 12064.8926228127. The cubic root of 145561634 is about 526.0362107433.

The spelling of 145561634 in words is "one hundred forty-five million, five hundred sixty-one thousand, six hundred thirty-four".