145761738 has 8 divisors (see below), whose sum is σ = 291523488. Its totient is φ = 48587244.

The previous prime is 145761719. The next prime is 145761769. The reversal of 145761738 is 837167541.

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

145761738 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 145761738.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 12146806 + ... + 12146817.

It is an arithmetic number, because the mean of its divisors is an integer number (36440436).

Almost surely, 2^145761738 is an apocalyptic number.

145761738 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

145761738 is a wasteful number, since it uses less digits than its factorization.

145761738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24293628.

The product of its digits is 141120, while the sum is 42.

The square root of 145761738 is about 12073.1825961509. The cubic root of 145761738 is about 526.2771482055.

The spelling of 145761738 in words is "one hundred forty-five million, seven hundred sixty-one thousand, seven hundred thirty-eight".