156651442 has 8 divisors (see below), whose sum is σ = 235651500. Its totient is φ = 78100944.

The previous prime is 156651433. The next prime is 156651449. The reversal of 156651442 is 244156651.

156651442 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 151807041 + 4844401 = 12321^2 + 2201^2 .

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 = 156651398 and 156651407.

It is not an unprimeable number, because it can be changed into a prime (156651449) 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, 111517 + ... + 112912.

Almost surely, 2^156651442 is an apocalyptic number.

156651442 is a deficient number, since it is larger than the sum of its proper divisors (79000058).

156651442 is a wasteful number, since it uses less digits than its factorization.

156651442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224780.

The product of its digits is 28800, while the sum is 34.

The square root of 156651442 is about 12516.0473792647. The cubic root of 156651442 is about 539.0695476729.

The spelling of 156651442 in words is "one hundred fifty-six million, six hundred fifty-one thousand, four hundred forty-two".