1345890367 has 4 divisors (see below), whose sum is σ = 1346758560. Its totient is φ = 1345022176.

The previous prime is 1345890361. The next prime is 1345890383. The reversal of 1345890367 is 7630985431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7630985431 = 73 ⋅104534047.

It is a cyclic number.

It is not a de Polignac number, because 1345890367 - 2¹⁵ = 1345857599 is a prime.

It is a super-2 number, since 2×1345890367² = 3622841759966789378, 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 (1345890361) 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, 431767 + ... + 434872.

It is an arithmetic number, because the mean of its divisors is an integer number (336689640).

Almost surely, 2^1345890367 is an apocalyptic number.

1345890367 is a deficient number, since it is larger than the sum of its proper divisors (868193).

1345890367 is an equidigital number, since it uses as much as digits as its factorization.

1345890367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868192.

The product of its (nonzero) digits is 544320, while the sum is 46.

The square root of 1345890367 is about 36686.3784939315. The cubic root of 1345890367 is about 1104.0868268961.

The spelling of 1345890367 in words is "one billion, three hundred forty-five million, eight hundred ninety thousand, three hundred sixty-seven".