247970146 has 16 divisors (see below), whose sum is σ = 382532544. Its totient is φ = 120503344.

The previous prime is 247970113. The next prime is 247970201. The reversal of 247970146 is 641079742.

It is a super-2 number, since 2×247970146² = 122978386614522632, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 247970099 and 247970108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 411 + ... + 22273.

It is an arithmetic number, because the mean of its divisors is an integer number (23908284).

Almost surely, 2^247970146 is an apocalyptic number.

247970146 is a deficient number, since it is larger than the sum of its proper divisors (134562398).

247970146 is a wasteful number, since it uses less digits than its factorization.

247970146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22025.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 247970146 is about 15747.0678540483. The cubic root of 247970146 is about 628.2509190424.

The spelling of 247970146 in words is "two hundred forty-seven million, nine hundred seventy thousand, one hundred forty-six".