1915144342 has 8 divisors (see below), whose sum is σ = 2912069016. Its totient is φ = 944454672.

The previous prime is 1915144339. The next prime is 1915144351. The reversal of 1915144342 is 2434415191.

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

It is a super-2 number, since 2×1915144342² = 7335555701389225928, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1915144298 and 1915144307.

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, 6558568 + ... + 6558859.

It is an arithmetic number, because the mean of its divisors is an integer number (364008627).

Almost surely, 2^1915144342 is an apocalyptic number.

1915144342 is a deficient number, since it is larger than the sum of its proper divisors (996924674).

1915144342 is a wasteful number, since it uses less digits than its factorization.

1915144342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13117502.

The product of its digits is 17280, while the sum is 34.

The square root of 1915144342 is about 43762.3621620223. The cubic root of 1915144342 is about 1241.8443638320.

The spelling of 1915144342 in words is "one billion, nine hundred fifteen million, one hundred forty-four thousand, three hundred forty-two".