154752641 has 4 divisors (see below), whose sum is σ = 156172500. Its totient is φ = 153332784.

The previous prime is 154752599. The next prime is 154752643. The reversal of 154752641 is 146257451.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 79566400 + 75186241 = 8920^2 + 8671^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154752641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154752643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 709766 + ... + 709983.

It is an arithmetic number, because the mean of its divisors is an integer number (39043125).

Almost surely, 2^154752641 is an apocalyptic number.

It is an amenable number.

154752641 is a deficient number, since it is larger than the sum of its proper divisors (1419859).

154752641 is a wasteful number, since it uses less digits than its factorization.

154752641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419858.

The product of its digits is 33600, while the sum is 35.

The square root of 154752641 is about 12439.9614549242. The cubic root of 154752641 is about 536.8826339521.

The spelling of 154752641 in words is "one hundred fifty-four million, seven hundred fifty-two thousand, six hundred forty-one".