1341772981 has 8 divisors (see below), whose sum is σ = 1374150528. Its totient is φ = 1309770000.

The previous prime is 1341772979. The next prime is 1341772987. The reversal of 1341772981 is 1892771431.

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

It is a cyclic number.

It is not a de Polignac number, because 1341772981 - 2¹ = 1341772979 is a prime.

It is a super-2 number, since 2×1341772981² = 3600709465083252722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1341772987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86385 + ... + 100726.

It is an arithmetic number, because the mean of its divisors is an integer number (171768816).

Almost surely, 2^1341772981 is an apocalyptic number.

It is an amenable number.

1341772981 is a deficient number, since it is larger than the sum of its proper divisors (32377547).

1341772981 is a wasteful number, since it uses less digits than its factorization.

1341772981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187283.

The product of its digits is 84672, while the sum is 43.

The square root of 1341772981 is about 36630.2195052118. The cubic root of 1341772981 is about 1102.9597922451.

The spelling of 1341772981 in words is "one billion, three hundred forty-one million, seven hundred seventy-two thousand, nine hundred eighty-one".