1355222407 has 16 divisors (see below), whose sum is σ = 1693880064. Its totient is φ = 1053360000.

The previous prime is 1355222387. The next prime is 1355222419. The reversal of 1355222407 is 7042225531.

It is not a de Polignac number, because 1355222407 - 2⁷ = 1355222279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1355223407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8932 + ... + 52822.

It is an arithmetic number, because the mean of its divisors is an integer number (105867504).

Almost surely, 2^1355222407 is an apocalyptic number.

1355222407 is a deficient number, since it is larger than the sum of its proper divisors (338657657).

1355222407 is a wasteful number, since it uses less digits than its factorization.

1355222407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44310.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 1355222407 is about 36813.3455013260. The cubic root of 1355222407 is about 1106.6327648543.

Adding to 1355222407 its reverse (7042225531), we get a palindrome (8397447938).

The spelling of 1355222407 in words is "one billion, three hundred fifty-five million, two hundred twenty-two thousand, four hundred seven".