161527742 has 8 divisors (see below), whose sum is σ = 242967600. Its totient is φ = 80538544.

The previous prime is 161527739. The next prime is 161527753. The reversal of 161527742 is 247725161.

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

It is a super-2 number, since 2×161527742² = 52182422871237128, which contains 22 as substring.

It is a congruent number.

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, 111767 + ... + 113202.

It is an arithmetic number, because the mean of its divisors is an integer number (30370950).

Almost surely, 2^161527742 is an apocalyptic number.

161527742 is a deficient number, since it is larger than the sum of its proper divisors (81439858).

161527742 is a wasteful number, since it uses less digits than its factorization.

161527742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225330.

The product of its digits is 23520, while the sum is 35.

The square root of 161527742 is about 12709.3564746607. The cubic root of 161527742 is about 544.6059402107.

The spelling of 161527742 in words is "one hundred sixty-one million, five hundred twenty-seven thousand, seven hundred forty-two".